The cabin air filter was discontinued on some trim packages after the 2002 model Yukons. If you do have a cabin air filter this guide will show you how to change it.
Please let us know if you need anything else to get the problem fixed.
Cheers
Jul 23, 2010 at 11:06 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.